Tkinter Instance has no attributes - python-2.7

Question

I am having an error against an innocent wish to play an audio in audio player using Tkinter. Error is:
Traceback (most recent call last):
File "C:\Users\Mudassar\workspace\Player\main_gui.py", line 43, in
<module>
app = GUI(playerobj)
File "C:\Users\Mudassar\workspace\Player\main_gui.py", line 10, in
__init__
self.create_button_frame()
AttributeError: GUI instance has no attribute 'create_button_frame'
My Code main_gui.py is:
from Tkinter import *
import tkFileDialog
import player
class GUI:
def __init__(self, player):
self.player = player
player.parent = player
self.root = Tk()
self.create_button_frame()
self.create_bottom_frame()
self.root.mainloop()
def create_button_frame(self):
buttonframe = Frame(self.root)
self.playicon = PhotoImage(file='../icons/play.gif')
self.stopicon = PhotoImage(file='../icons/stop.gif')
self.playbtn=Button(buttonframe, text ='play', image=self.playicon,
borderwidth=0, command=self.toggle_play_pause)
self.playbtn.image = self.playicon
self.playbtn.grid(row=3, column=3)
buttonframe.grid(row=1, pady=4, padx=5)
def create_bottom_frame(self):
bottomframe = Frame(self.root)
add_fileicon = PhotoImage(file='../icons/add_file.gif')
add_filebtn = Button(bottomframe, image=add_fileicon, borderwidth=0,
text='Add File', command = self.add_file)
add_filebtn.image = add_fileicon
add_filebtn.grid(row=2, column=1)
bottomframe.grid(row=2, sticky='w', padx=5)
def toggle_play_pause(self):
if self.playbtn['text'] == 'play':
self.playbtn.config(text='stop', image=self.stopicon)
self.player.start_play_thread()
elif self.playbtn['text'] == 'stop':
self.playbtn.config(text = 'play', image=self.playicon)
self.player.pause()
def add_file(self):
tfile = tkFileDialog.askopenfilename(filetypes = [('All supported',
'.mp3 .wav .ogg'), ('All files', '*.*')])
self.currentTrack = tfile
if __name__=='__main__':
playerobj = player.Player()
app = GUI(playerobj)
My Player button functions in another (as they have nothing to do with error)are:
import pyglet
from threading import Thread
class Player():
parent = None
def play_media(self):
try:
self.myplayer=pyglet.media.Player()
self.source = pyglet.media.load(self.parent.currentTrack)
self.myplayer.queue(self.source)
self.myplayer.queue(self.source)
self.myplayer.play()
pyglet.app.run()
except:
pass
def start_play_thread(self):
player_thread = Thread(target=self.play_media)
player_thread.start()
def pause(self):
try:
self.myplayer.pause()
self.paused = True
except: pass
Please help.

Answer 1

Seems like your problem is indentation. Your create_button_frame() function is not an attribute of the class GUI, it is a global function. Indent all the functions taking parameter self four spaces to the right. Then they will be methods of your class GUI.